formerly known as Diakon
Systems, is responsible for the design and
development of two library automation software systems, PC Card Catalog and CONCEPT I.
The company maintains the primary sales and
support functions for these products.
DIAKON Systems was
established in the early 1983 as a
custom software design company. Early
products included PC-based software
supporting banking, city government,
printing, office supply sales and
inventory tracking activities.
Its early library management development
began in 1984 with a shareware product
called CASSY, designed to print
catalog cards and Accession/Shelf
lists. This product had its initial
impetus because of a personal
involvement with church library work.
At the time, there were no inexpensive
PC software packages that could manage
catalog cards. Hence the need.
In 1987 DIAKON Systems
developed a more advanced system called
LIBRARY MANAGER for marketing
mostly to church libraries by another
The company expanded the original
CASSY program to the DOS product
named PC Card Catalog:
professional. This was available in
1989. As Windows evolved into the
operating system of choice, the product was redesigned for the
Windows 95/NT platform.
In 1998 PC Card
Catalog:Windows was released. This
program has been under constant update
and development since that time as seen
by the recent release of version 3.4
and CONCEPT I.
The program name was
shortened to PC Card Catalog
when version 3.0 was released (April
2002). Since 2003, our company has been
known as Library
The development and
testing have revolved around an actual
library at a church, Wedgwood Baptist in Fort
Worth, Texas, where the Library
Concepts principles are active.